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Old 09-21-2022, 01:00 AM
Jack Gifford's Avatar
Jack Gifford Jack Gifford is offline
formerly 'Pontiac Jack'
 
Join Date: Dec 2004
Location: Phelps, NY 14532
Posts: 10,181
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I like early 4-speed HydraMatics. But- repairing them can be very expensive, and few transmission shops will service them.
'57 is a Dual-Coupling, which eliminates the harsh shifting of earlier Dual-Range HydraMatics. But it suffers from a performance standpoint; the 1-2 and 3-4 shifts can not be made quickly, since time is required to fill the front coupling with fluid.

__________________
Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons?
... or has built a record breaking DOHC hemi four cylinder Pontiac?
... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967)